SWTOR Lore: The More Things Change...

The Rakatan Infinite Empire left a massive technological legacy in the Star Wars universe. They were the first to invent basically all the technology that exists during the era of Star Wars: The Old Republic, and that tech has remained current for about 4000 years. Some minor advancements were made here and there, but the basic tech never really changes.

If you look at the Earth of 4000 years ago and compare it to Earth today, you will see a profound leap in technology. In 2000 BC, Stonehenge was just being completed. The Bronze Age was just beginning in northern China. People were just discovering glass. Jump forward 4000 years and you have the Burj Khalifa tower in Dubai, nearly 830 metres (2723 Feet) tall. The world has passed beyond defining its ages by increasingly-complex metals or industry, and now classes itself according to how much electronic data it can effectively create, store and use. The rudimentary glass first discovered 4000 years ago has been refined to the point where it can be used in windows in the International Space Station orbiting the planet.